There are so many different makes to choose from.
有很多不同的型号可供选择。
There are only so many hours in a day.
一天不过这么几个小时。
What do you think of the show so far?
到目前为止你觉得这场演出怎么样？
He is so not the right person for you.
他这个人绝对不适合你。
Life was never going to be so free and easy again.
生活绝不会再那样无拘无束了。